Improved ore-crtjsher



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Letters Patent No. 91,641, dated .u'ne 22, 1869.

IMPROVE!) ORE-CRUSHER.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, S. R. KnoM, of the city, county, andSt-ate of N ew York, have invented a new and uscful Improvement in Ore-Crushers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which-v Figure l represents a side elevation of an ore-crushing machine, constructed in accordance with my improvement; Figure 2, an end elevation of the same; and

Figure 3, a vertical section of oneof the crushingjaws detached.

Similar letters of reference indicate corresponding parts.

This invention relates to that class of machines which has for its object the breaking and pulverizing of quartz, rock, and ,otherlike material, and the leadingcharacteristics or objects of the invention, are increased strength for weight'of material employed inthe machine, perfect eiiciency in all the working-parts of the same, together with great simplicity and ladaptation for the purposes for which it is designed.

My invention consists, first, in a combination, with rocking jaws or Crushers, of the driving-shaft thereto, arranged so as tofbe carried by the one jaw, and serving, through a connecting-rod or rods, to operate the other jaw in concert with it, whereby, among other advantages, great simplicity in construction and diminution of Weight are attained.

The invention also consists in a combination, with the rocking jaws, of diagonally-arranged connectinglinks or rods, for rendering more perfect the action or motion of the jaws.

Likewise the invention covers a peculiar construction ofthe jaws, including tie orbrace-rods in their rear, whereby great lightness land strength are secured, with increased facility for packing and transportation.

Referring to the accompanying drawings- A A' are the crushing-jaws or breakers, and

a c' the rocking shafts or journals, on which said jaws work, said shafts or journals resting in supports or carriagesIB B.

The one of said jaws is provided with side plates b l), which, as the jaws are vibrated on their journals a a', serve to close in the spaccbetween them. v

Connecting the jaws on their outsides, are links or rods, 0 C, arranged to occupy a diagonal position by uniting either one jaw at or near its top, with the other jaw at or near its bottom, as' for instance by shafts or rods c c', onwhich said links play. rlhese rods or links not'only serve to hold the jaws A A j in ,proper relation to each other, but, at the saine time, admit of them, by the diagonal position of the links, exerting a rubhingas Well as a direct crushingaction on the ore or quartz passing down and out through betven them.

The supports or carriages B B', which carry the journals a a of the jaws, are connected by bolts D D, provided with nuts d l for securing to the jaws where they more closely approach each other, as at x, a iixed but adjustable distance apart, accordingly as t-he machine is required to work coarse or fine.` Y

E is thedriving-shaft, provided with a driving-pulley, F, and iiy-wheel G. This shaft has its bearing in and through the one jaw A at or near its top, and is formed or provided outside one or both ends of said bearing, with an eccentric, H, or a crank may be substituted for the eccentric.

The other jaw A also has a shaft, I, running through it, at or near its top, and running parallel to the driving-shaft E.

These two shafts E and I are connected by rods J J made to iit the, eccentrics H at their one end, and the shaft I at their other, by which means both jaws are caused to rock to and from each other, to eiect the crushing of the ore or quartz as it is fed in from above between the jaws.

'Said jaws A A', of which ff are the crushing-plates or surfaces, are of peculiar construction, to combine lightness with strength, being made hollow, and larger at their base than their tops, and iitted or provided in their rear with bolts M M, connecting each jaw above and below7 in proximity to its back, and made capable of being tightened up or stitfened by nuts g-g.

From this description it will be seen that the jaws A A', rocking on their bearings a a', are, when considered in relation to each other, `where they more closely approximate, as at x, sections of rollers, and there operate in like manner to rollers for breaking to a uniform size the ore or rock passing down in between them.

-Thisfeature in the action of the jaws is importa-nt.

The method of producing the rocking action to the jaws, is likewise of great value, inasmuch as by the hanging of the driving-shaft E in the upper portion of onepof the jaws, and connecting the two jaws by the rods l through the eccentric formations H and shaft I, I effect great simplicity of construction, making the one jaw perform a double function, namely, that of a crusher, and of a bearing for the driving-shaft, thereby economizing material and construction, by dispensing with independent bearings to said shaft, and of a consequence, and this without diminishing strength and utility, but rather adding to both, materially reducing weight, which is a very important consideration, as regards transportation and otherwise 'in ore or quartzc'rushers.

The jaws, as linked together bythe rods J, it will be observed, advance towards and recede from each other; at all points above their rolling level or point x, while the diagonal rods O exert a double control or action o'n the jaws, the first of which is to keep the jaws in proper relation to each other; and in this connection 'it will be noticed that without some such means there would be a want of uniformity in the motion 'of the two jaws, by reason ofthe tendency of the lighter one, A, which has no fly-wheel or driving-pulley to carry, to more readily move in the performance of its work, than the other or heavier jaw A,which inclines to remain stationary, so ,that these `links or rods O compensate for the disproportionate weight of the two jaws. The second or other use of these rods O is, (and this is attained by their diagonal arrangemeut,) to

ladmit of thel jaws having a slight rubbing action or motion, said jaws being placed'in such position or relation to each other, as to eifect this result, whichis very desirable, as it notonly facilitates 'thereduction v of the quartz or ore, but serves to free the jaws of the crushed material, which lis apt to stick, and pack'on or clog the crushing-surfaces. lBy'shifting the lower ends of these rods O in direction, say of the arrow z, iig. 1, this rubbing motion is increased.

By constructing the jaws, ashereinbefore described, not only do the rods M serve to give increased stiffness, and to provide against fracture of the jaws Where such, by the action of the crushing-pressure, is most liable, but there is combined with such increased strength, great lightness and facility of packing for transportation-purposes. The peculiar shape of the jaws admits .of the rods M being arranged as described to great advantage. t

Whatis here claimed, and desired to be secured by Letters Patent, is- 

